drivers/net/ethernet/intel/i40e/i40e_adminq.h

   1 /*******************************************************************************
   2  *
   3  * Intel Ethernet Controller XL710 Family Linux Driver
   4  * Copyright(c) 2013 - 2014 Intel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * The full GNU General Public License is included in this distribution in
  19  * the file called "COPYING".
  20  *
  21  * Contact Information:
  22  * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  ******************************************************************************/
  26
  27 #ifndef _I40E_ADMINQ_H_
  28 #define _I40E_ADMINQ_H_
  29
  30 #include "i40e_osdep.h"
  31 #include "i40e_adminq_cmd.h"
  32
  33 #define I40E_ADMINQ_DESC(R, i)   \
  34         (&(((struct i40e_aq_desc *)((R).desc_buf.va))[i]))
  35
  36 #define I40E_ADMINQ_DESC_ALIGNMENT 4096
  37
  38 struct i40e_adminq_ring {
  39         struct i40e_virt_mem dma_head;  /* space for dma structures */
  40         struct i40e_dma_mem desc_buf;   /* descriptor ring memory */
  41         struct i40e_virt_mem cmd_buf;   /* command buffer memory */
  42
  43         union {
  44                 struct i40e_dma_mem *asq_bi;
  45                 struct i40e_dma_mem *arq_bi;
  46         } r;
  47
  48         u16 count;              /* Number of descriptors */
  49         u16 rx_buf_len;         /* Admin Receive Queue buffer length */
  50
  51         /* used for interrupt processing */
  52         u16 next_to_use;
  53         u16 next_to_clean;
  54
  55         /* used for queue tracking */
  56         u32 head;
  57         u32 tail;
  58         u32 len;
  59 };
  60
  61 /* ASQ transaction details */
  62 struct i40e_asq_cmd_details {
  63         void *callback; /* cast from type I40E_ADMINQ_CALLBACK */
  64         u64 cookie;
  65         u16 flags_ena;
  66         u16 flags_dis;
  67         bool async;
  68         bool postpone;
  69 };
  70
  71 #define I40E_ADMINQ_DETAILS(R, i)   \
  72         (&(((struct i40e_asq_cmd_details *)((R).cmd_buf.va))[i]))
  73
  74 /* ARQ event information */
  75 struct i40e_arq_event_info {
  76         struct i40e_aq_desc desc;
  77         u16 msg_size;
  78         u8 *msg_buf;
  79 };
  80
  81 /* Admin Queue information */
  82 struct i40e_adminq_info {
  83         struct i40e_adminq_ring arq;    /* receive queue */
  84         struct i40e_adminq_ring asq;    /* send queue */
  85         u16 num_arq_entries;            /* receive queue depth */
  86         u16 num_asq_entries;            /* send queue depth */
  87         u16 arq_buf_size;               /* receive queue buffer size */
  88         u16 asq_buf_size;               /* send queue buffer size */
  89         u16 fw_maj_ver;                 /* firmware major version */
  90         u16 fw_min_ver;                 /* firmware minor version */
  91         u16 api_maj_ver;                /* api major version */
  92         u16 api_min_ver;                /* api minor version */
  93
  94         struct mutex asq_mutex; /* Send queue lock */
  95         struct mutex arq_mutex; /* Receive queue lock */
  96
  97         /* last status values on send and receive queues */
  98         enum i40e_admin_queue_err asq_last_status;
  99         enum i40e_admin_queue_err arq_last_status;
 100 };
 101
 102 /* general information */
 103 #define I40E_AQ_LARGE_BUF       512
 104 #define I40E_ASQ_CMD_TIMEOUT    100000  /* usecs */
 105
 106 void i40e_fill_default_direct_cmd_desc(struct i40e_aq_desc *desc,
 107                                        u16 opcode);
 108
 109 #endif /* _I40E_ADMINQ_H_ */